Verify a shared contact list from Slack
An explicit Slack handoff can start a Clearout bulk verification job for a CSV or XLSX contacts list.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Bulk Email Verify
Tool to upload a CSV or XLSX file for bulk email verification. Use when you have a list of emails to verify in bulk.
Why this helps
Lists can move from draft to outreach without a clear owner remembering to verify addresses first.
- Add an explicit verification step to list handoffs.
- Keep the file request connected to its validation job.
- Reduce the chance an unreviewed list reaches outreach.
Setup
Build it in a few focused steps.
- 1Connect Slack and Clearout to Notis once in the portal.
- 2Create an automation in Automations or ask Notis conversationally.
- 3Ask Notis in one instruction to submit a shared CSV or XLSX contacts file to Clearout Bulk Email Verify only when a teammate requests list validation.
- 4Pick Channel Message Received, choose a run-report channel, and test with one real list request.
Questions about this workflow
What happens after the list is submitted?
Clearout starts a bulk verification job. Progress and result download are separate actions.
Can it check a single address?
This action is for uploading a CSV or XLSX file. Use the instant verifier for one address.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Clearout. A trigger fires from one place; an action lands in another.
Slack triggers
Clearout actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
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Webhook trigger
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New Channel Created Trigger
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Catch-All Verify
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Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
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Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
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Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Bulk Email Finder
Tool to upload a CSV or XLSX contacts file for bulk email finding. Use when you need to find emails for a list of contacts in bulk.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Cancel Bulk Email Finder Job
Tool to cancel a running bulk email finder job. Use when you need to stop an in-progress list scan before completion.
Connect any two apps with Notis in the middle.
Slack and Clearout, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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